Reductive Activation of O<sub>2</sub> by Non-Heme Iron(II) Benzilate Complexes of N<sub>4</sub> Ligands: Effect of Ligand Topology on the Reactivity of O<sub>2</sub>-Derived Oxidant
作者:Biswarup Chakraborty、Rahul Dev Jana、Reena Singh、Sayantan Paria、Tapan Kanti Paine
DOI:10.1021/acs.inorgchem.6b02282
日期:2017.1.3
monoanionic benzilate, whereas complex 7 contains a mononuclear five-coordinate iron(II) center. Benzilate binds to the iron center in a monodentate fashion via one of the carboxylate oxygens in 1 and 7, but it coordinates in a bidentate chelating mode through carboxylate oxygen and neutral hydroxy oxygen in 2, 3, and 5. All of the iron(II) complexes react with dioxygen to exhibit quantitative decarboxylation
已分离出一系列具有通式[(L)Fe II(benzilate)] +的苯甲酸铁(II)配合物(1 – 7),并进行了表征,以研究支持配体(L)对金属基反应性的影响与双氧反应生成的氧化剂。五个三脚架N 4配体(三(2-吡啶基甲基)胺(TPA在1中),三(6-甲基-2-吡啶基甲基)胺(6-Me 3 -TPA在2中),N 1,N 1-二甲基-N 2,N 2-双(2-吡啶基甲基)乙烷-1,2-二胺(iso -BPMEN in3),Ñ 1,Ñ 1二甲基Ñ 2,Ñ 2 -双(6-甲基-2-吡啶基甲基)乙烷-1,2-二胺(6-ME 2 -异丙在-BPMEN 4),和三( 2-苯并咪唑基甲基)胺(TBimA在7中))和两个线性四齿胺配体(N 1 ,N 2-二甲基-N 1 ,N 2-双(2-吡啶基甲基)乙烷-1,2-二胺(BPMEN在5中))和N 1,N 2-二甲基-N 1,N 2-双(6-甲基-2-吡啶基甲基)乙烷-1,2-二胺(6-Me